。
She had an abortion.
Literal
She [topic-は] pregnancy-termination did.
妊娠中絶 is the technical/clinical term for induced abortion — 妊娠 ('pregnancy') + 中絶 ('interrupt, terminate'). The full phrase is somewhat formal; in everyday speech, 中絶する alone is common. As a 漢語 noun + する verb, the construction is regular.